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annotate src/file/SDL_rwops.c @ 4454:be387681d876

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Fixed Eric's changes to allow building from the command line.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 09 May 2010 10:00:33 -0700
parents 947201caa46e
children e8916fe9cfc8
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* This file provides a general interface for SDL to read and write
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25 data sources. It can easily be extended to files, memory, etc.
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26 */
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27
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28 #include "SDL_endian.h"
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29 #include "SDL_rwops.h"
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30
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31 #ifdef __APPLE__
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32 #include "cocoa/SDL_rwopsbundlesupport.h"
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33 #endif /* __APPLE__ */
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34
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35 #ifdef __NDS__
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36 /* include libfat headers for fatInitDefault(). */
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37 #include <fat.h>
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38 #endif /* __NDS__ */
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39
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40 #ifdef __WIN32__
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41
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42 /* Functions to read/write Win32 API file pointers */
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43 /* Will not use it on WinCE because stdio is buffered, it means
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44 faster, and all stdio functions anyway are embedded in coredll.dll -
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45 the main wince dll*/
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46
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47 #define WINDOWS_LEAN_AND_MEAN
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48 #include <windows.h>
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49
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50 #ifndef INVALID_SET_FILE_POINTER
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51 #define INVALID_SET_FILE_POINTER 0xFFFFFFFF
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52 #endif
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53
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54 #define READAHEAD_BUFFER_SIZE 1024
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55
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56 static int SDLCALL
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57 win32_file_open(SDL_RWops * context, const char *filename, const char *mode)
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58 {
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59 #ifndef _WIN32_WCE
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60 UINT old_error_mode;
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61 #endif
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62 HANDLE h;
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63 DWORD r_right, w_right;
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64 DWORD must_exist, truncate;
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65 int a_mode;
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66
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67 if (!context)
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68 return -1; /* failed (invalid call) */
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69
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70 context->hidden.win32io.h = INVALID_HANDLE_VALUE; /* mark this as unusable */
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71 context->hidden.win32io.buffer.data = NULL;
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72 context->hidden.win32io.buffer.size = 0;
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73 context->hidden.win32io.buffer.left = 0;
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74
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75 /* "r" = reading, file must exist */
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76 /* "w" = writing, truncate existing, file may not exist */
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77 /* "r+"= reading or writing, file must exist */
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78 /* "a" = writing, append file may not exist */
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79 /* "a+"= append + read, file may not exist */
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80 /* "w+" = read, write, truncate. file may not exist */
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81
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82 must_exist = (SDL_strchr(mode, 'r') != NULL) ? OPEN_EXISTING : 0;
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83 truncate = (SDL_strchr(mode, 'w') != NULL) ? CREATE_ALWAYS : 0;
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84 r_right = (SDL_strchr(mode, '+') != NULL
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85 || must_exist) ? GENERIC_READ : 0;
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86 a_mode = (SDL_strchr(mode, 'a') != NULL) ? OPEN_ALWAYS : 0;
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87 w_right = (a_mode || SDL_strchr(mode, '+')
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88 || truncate) ? GENERIC_WRITE : 0;
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89
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90 if (!r_right && !w_right) /* inconsistent mode */
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91 return -1; /* failed (invalid call) */
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92
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93 context->hidden.win32io.buffer.data =
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94 (char *) SDL_malloc(READAHEAD_BUFFER_SIZE);
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95 if (!context->hidden.win32io.buffer.data) {
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96 SDL_OutOfMemory();
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97 return -1;
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98 }
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99 #ifdef _WIN32_WCE
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100 {
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101 size_t size = SDL_strlen(filename) + 1;
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102 wchar_t *filenameW = SDL_stack_alloc(wchar_t, size);
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103
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104 if (MultiByteToWideChar(CP_UTF8, 0, filename, -1, filenameW, size) ==
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105 0) {
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106 SDL_stack_free(filenameW);
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107 SDL_free(context->hidden.win32io.buffer.data);
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108 context->hidden.win32io.buffer.data = NULL;
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109 SDL_SetError("Unable to convert filename to Unicode");
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110 return -1;
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111 }
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112 h = CreateFile(filenameW, (w_right | r_right),
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113 (w_right) ? 0 : FILE_SHARE_READ, NULL,
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114 (must_exist | truncate | a_mode),
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115 FILE_ATTRIBUTE_NORMAL, NULL);
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116 SDL_stack_free(filenameW);
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117 }
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118 #else
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119 /* Do not open a dialog box if failure */
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120 old_error_mode =
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121 SetErrorMode(SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS);
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122
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123 h = CreateFile(filename, (w_right | r_right),
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124 (w_right) ? 0 : FILE_SHARE_READ, NULL,
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125 (must_exist | truncate | a_mode), FILE_ATTRIBUTE_NORMAL,
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diff changeset
126 NULL);
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127
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128 /* restore old behaviour */
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diff changeset
129 SetErrorMode(old_error_mode);
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diff changeset
130 #endif /* _WIN32_WCE */
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131
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diff changeset
132 if (h == INVALID_HANDLE_VALUE) {
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c2ffcc627701 Merged r3201:3204 from branches/SDL-1.2: win32 rwops tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 2164
diff changeset
133 SDL_free(context->hidden.win32io.buffer.data);
c2ffcc627701 Merged r3201:3204 from branches/SDL-1.2: win32 rwops tweaks.
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parents: 2164
diff changeset
134 context->hidden.win32io.buffer.data = NULL;
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135 SDL_SetError("Couldn't open %s", filename);
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diff changeset
136 return -2; /* failed (CreateFile) */
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diff changeset
137 }
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diff changeset
138 context->hidden.win32io.h = h;
2161
e635db5b45ef Oh yeah, they're boolean values...
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diff changeset
139 context->hidden.win32io.append = a_mode ? SDL_TRUE : SDL_FALSE;
1895
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diff changeset
140
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
141 return 0; /* ok */
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142 }
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143
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diff changeset
144 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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diff changeset
145 win32_file_seek(SDL_RWops * context, long offset, int whence)
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diff changeset
146 {
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diff changeset
147 DWORD win32whence;
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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148 long file_pos;
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149
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
150 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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151 SDL_SetError("win32_file_seek: invalid context/file not opened");
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152 return -1;
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diff changeset
153 }
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diff changeset
154
2159
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diff changeset
155 /* FIXME: We may be able to satisfy the seek within buffered data */
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
156 if (whence == RW_SEEK_CUR && context->hidden.win32io.buffer.left) {
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diff changeset
157 offset -= (long)context->hidden.win32io.buffer.left;
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
158 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
159 context->hidden.win32io.buffer.left = 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
160
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
161 switch (whence) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
162 case RW_SEEK_SET:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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163 win32whence = FILE_BEGIN;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
164 break;
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diff changeset
165 case RW_SEEK_CUR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
166 win32whence = FILE_CURRENT;
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diff changeset
167 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
168 case RW_SEEK_END:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
169 win32whence = FILE_END;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
170 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
171 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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172 SDL_SetError("win32_file_seek: Unknown value for 'whence'");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
173 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
174 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
175
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
176 file_pos =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
177 SetFilePointer(context->hidden.win32io.h, offset, NULL, win32whence);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
178
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
179 if (file_pos != INVALID_SET_FILE_POINTER)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
180 return file_pos; /* success */
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diff changeset
181
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
182 SDL_Error(SDL_EFSEEK);
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diff changeset
183 return -1; /* error */
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184 }
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185
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diff changeset
186 static size_t SDLCALL
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diff changeset
187 win32_file_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
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diff changeset
188 {
2160
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diff changeset
189 size_t total_need;
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diff changeset
190 size_t total_read = 0;
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diff changeset
191 size_t read_ahead;
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
192 DWORD byte_read;
1895
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diff changeset
193
2159
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diff changeset
194 total_need = size * maxnum;
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diff changeset
195
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diff changeset
196 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE
2160
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diff changeset
197 || !total_need)
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diff changeset
198 return 0;
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diff changeset
199
2159
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diff changeset
200 if (context->hidden.win32io.buffer.left > 0) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
201 void *data = (char *) context->hidden.win32io.buffer.data +
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
202 context->hidden.win32io.buffer.size -
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
203 context->hidden.win32io.buffer.left;
2185
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is
Bob Pendleton <bob@pendleton.com>
parents: 2179
diff changeset
204 read_ahead =
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diff changeset
205 SDL_min(total_need, context->hidden.win32io.buffer.left);
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
206 SDL_memcpy(ptr, data, read_ahead);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
207 context->hidden.win32io.buffer.left -= read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
208
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
209 if (read_ahead == total_need) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
210 return maxnum;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
211 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
212 ptr = (char *) ptr + read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
213 total_need -= read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
214 total_read += read_ahead;
1895
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diff changeset
215 }
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
216
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
217 if (total_need < READAHEAD_BUFFER_SIZE) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
218 if (!ReadFile
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
219 (context->hidden.win32io.h, context->hidden.win32io.buffer.data,
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
220 READAHEAD_BUFFER_SIZE, &byte_read, NULL)) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
221 SDL_Error(SDL_EFREAD);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
222 return 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
223 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
224 read_ahead = SDL_min(total_need, (int) byte_read);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
225 SDL_memcpy(ptr, context->hidden.win32io.buffer.data, read_ahead);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
226 context->hidden.win32io.buffer.size = byte_read;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
227 context->hidden.win32io.buffer.left = byte_read - read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
228 total_read += read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
229 } else {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
230 if (!ReadFile
3253
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parents: 2859
diff changeset
231 (context->hidden.win32io.h, ptr, (DWORD)total_need, &byte_read, NULL)) {
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
232 SDL_Error(SDL_EFREAD);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
233 return 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
234 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
235 total_read += byte_read;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
236 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
237 return (total_read / size);
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diff changeset
238 }
2735
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diff changeset
239
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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diff changeset
240 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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parents: 2159
diff changeset
241 win32_file_write(SDL_RWops * context, const void *ptr, size_t size,
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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parents: 2159
diff changeset
242 size_t num)
1465
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Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
243 {
1895
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diff changeset
244
2160
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parents: 2159
diff changeset
245 size_t total_bytes;
3253
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diff changeset
246 DWORD byte_written;
5d7ef5970073 Fixed issues building 64-bit Windows binary
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parents: 2859
diff changeset
247 size_t nwritten;
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diff changeset
248
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
249 total_bytes = size * num;
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diff changeset
250
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
251 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
252 || total_bytes <= 0 || !size)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
253 return 0;
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parents: 1402
diff changeset
254
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parents: 1978
diff changeset
255 if (context->hidden.win32io.buffer.left) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
256 SetFilePointer(context->hidden.win32io.h,
3253
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diff changeset
257 -(LONG)context->hidden.win32io.buffer.left, NULL,
2159
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parents: 1978
diff changeset
258 FILE_CURRENT);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
259 context->hidden.win32io.buffer.left = 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
260 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
261
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
262 /* if in append mode, we must go to the EOF before write */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
263 if (context->hidden.win32io.append) {
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
264 if (SetFilePointer(context->hidden.win32io.h, 0L, NULL, FILE_END) ==
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
265 INVALID_SET_FILE_POINTER) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
266 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
267 return 0;
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Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
269 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
270
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
271 if (!WriteFile
3253
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diff changeset
272 (context->hidden.win32io.h, ptr, (DWORD)total_bytes, &byte_written, NULL)) {
1895
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diff changeset
273 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
274 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
275 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
276
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
277 nwritten = byte_written / size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
278 return nwritten;
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diff changeset
279 }
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280
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
281 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
282 win32_file_close(SDL_RWops * context)
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
283 {
1895
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diff changeset
284
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
285 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
286 if (context->hidden.win32io.h != INVALID_HANDLE_VALUE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
287 CloseHandle(context->hidden.win32io.h);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
288 context->hidden.win32io.h = INVALID_HANDLE_VALUE; /* to be sure */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
289 }
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
290 if (context->hidden.win32io.buffer.data) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
291 SDL_free(context->hidden.win32io.buffer.data);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
292 context->hidden.win32io.buffer.data = NULL;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
293 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
294 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
295 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
296 return (0);
1446
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parents: 1402
diff changeset
297 }
1447
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diff changeset
298 #endif /* __WIN32__ */
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diff changeset
299
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diff changeset
300 #ifdef HAVE_STDIO_H
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diff changeset
301
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
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diff changeset
302 /* Functions to read/write stdio file pointers */
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
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diff changeset
303
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diff changeset
304 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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diff changeset
305 stdio_seek(SDL_RWops * context, long offset, int whence)
1447
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diff changeset
306 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
307 if (fseek(context->hidden.stdio.fp, offset, whence) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
308 return (ftell(context->hidden.stdio.fp));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
309 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
310 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
311 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
312 }
1447
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diff changeset
313 }
2735
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diff changeset
314
2160
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diff changeset
315 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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parents: 2159
diff changeset
316 stdio_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
1447
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diff changeset
317 {
1895
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diff changeset
318 size_t nread;
1446
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diff changeset
319
1895
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diff changeset
320 nread = fread(ptr, size, maxnum, context->hidden.stdio.fp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
321 if (nread == 0 && ferror(context->hidden.stdio.fp)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
322 SDL_Error(SDL_EFREAD);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
323 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
324 return (nread);
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
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parents: 1446
diff changeset
325 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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parents: 2185
diff changeset
326
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
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parents: 2159
diff changeset
327 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
328 stdio_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
1447
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Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
329 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
330 size_t nwrote;
1446
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parents: 1402
diff changeset
331
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
332 nwrote = fwrite(ptr, size, num, context->hidden.stdio.fp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
333 if (nwrote == 0 && ferror(context->hidden.stdio.fp)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
334 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
335 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
336 return (nwrote);
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
337 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
338
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
339 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
340 stdio_close(SDL_RWops * context)
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
341 {
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
342 int status = 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
343 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
344 if (context->hidden.stdio.autoclose) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
345 /* WARNING: Check the return value here! */
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
346 if (fclose(context->hidden.stdio.fp) != 0) {
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
347 SDL_Error(SDL_EFWRITE);
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
348 status = -1;
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
349 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
350 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
351 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
352 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
353 return status;
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
354 }
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
355 #endif /* !HAVE_STDIO_H */
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
356
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 /* Functions to read/write memory pointers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
359 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
360 mem_seek(SDL_RWops * context, long offset, int whence)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
362 Uint8 *newpos;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
364 switch (whence) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
365 case RW_SEEK_SET:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
366 newpos = context->hidden.mem.base + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
367 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
368 case RW_SEEK_CUR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
369 newpos = context->hidden.mem.here + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
370 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
371 case RW_SEEK_END:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
372 newpos = context->hidden.mem.stop + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
373 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
374 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
375 SDL_SetError("Unknown value for 'whence'");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
376 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
377 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
378 if (newpos < context->hidden.mem.base) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
379 newpos = context->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
380 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
381 if (newpos > context->hidden.mem.stop) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
382 newpos = context->hidden.mem.stop;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
383 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
384 context->hidden.mem.here = newpos;
3253
5d7ef5970073 Fixed issues building 64-bit Windows binary
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
385 return (long)(context->hidden.mem.here - context->hidden.mem.base);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
387
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
388 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
389 mem_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
391 size_t total_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
392 size_t mem_available;
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
393
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
394 total_bytes = (maxnum * size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
395 if ((maxnum <= 0) || (size <= 0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
396 || ((total_bytes / maxnum) != (size_t) size)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
397 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
398 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
400 mem_available = (context->hidden.mem.stop - context->hidden.mem.here);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
401 if (total_bytes > mem_available) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
402 total_bytes = mem_available;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
403 }
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
404
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
405 SDL_memcpy(ptr, context->hidden.mem.here, total_bytes);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
406 context->hidden.mem.here += total_bytes;
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
407
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
408 return (total_bytes / size);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
410
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
411 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
412 mem_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
414 if ((context->hidden.mem.here + (num * size)) > context->hidden.mem.stop) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
415 num = (context->hidden.mem.stop - context->hidden.mem.here) / size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
416 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
417 SDL_memcpy(context->hidden.mem.here, ptr, num * size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
418 context->hidden.mem.here += num * size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
419 return (num);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
421
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
422 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
423 mem_writeconst(SDL_RWops * context, const void *ptr, size_t size, size_t num)
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
424 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
425 SDL_SetError("Can't write to read-only memory");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
426 return (-1);
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
427 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
428
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
429 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
430 mem_close(SDL_RWops * context)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
432 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
433 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
434 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
435 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
438
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439 /* Functions to create SDL_RWops structures from various data sources */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
441 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
442 SDL_RWFromFile(const char *file, const char *mode)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
444 SDL_RWops *rwops = NULL;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
445 #ifdef HAVE_STDIO_H
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
446 FILE *fp = NULL;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
447 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
448 if (!file || !*file || !mode || !*mode) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
449 SDL_SetError("SDL_RWFromFile(): No file or no mode specified");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
450 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
451 }
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
452 #if defined(__WIN32__)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
453 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
454 if (!rwops)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
455 return NULL; /* SDL_SetError already setup by SDL_AllocRW() */
2164
d083a2e4433d Merged memory leak fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2161
diff changeset
456 if (win32_file_open(rwops, file, mode) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
457 SDL_FreeRW(rwops);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
458 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
459 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
460 rwops->seek = win32_file_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
461 rwops->read = win32_file_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
462 rwops->write = win32_file_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
463 rwops->close = win32_file_close;
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
464
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
465 #elif HAVE_STDIO_H
4447
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
466 #ifdef __APPLE__
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
467 fp = SDL_OpenFPFromBundleOrFallback(file, mode);
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
468 #else
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
469 fp = fopen(file, mode);
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
470 #endif
947201caa46e Added automated test to Xcode project plus needed changes to SDL_RWFromFile to be OS X bundle aware.
Eric Wing <ewing . public |-at-| gmail . com>
parents: 3697
diff changeset
471 if (fp == NULL) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
472 SDL_SetError("Couldn't open %s", file);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
473 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
474 rwops = SDL_RWFromFP(fp, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
475 }
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
476 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
477 SDL_SetError("SDL not compiled with stdio support");
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
478 #endif /* !HAVE_STDIO_H */
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
479
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
480 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
483 #ifdef HAVE_STDIO_H
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
484 SDL_RWops *
2161
e635db5b45ef Oh yeah, they're boolean values...
Sam Lantinga <slouken@libsdl.org>
parents: 2160
diff changeset
485 SDL_RWFromFP(FILE * fp, SDL_bool autoclose)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
487 SDL_RWops *rwops = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
489 #if 0
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
490 /*#ifdef __NDS__*/
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
491 /* set it up so we can use stdio file function */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
492 fatInitDefault();
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
493 printf("called fatInitDefault()");
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
494 #endif /* __NDS__ */
204be4fc2726 Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents: 2185
diff changeset
495
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
496 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
497 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
498 rwops->seek = stdio_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
499 rwops->read = stdio_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
500 rwops->write = stdio_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
501 rwops->close = stdio_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
502 rwops->hidden.stdio.fp = fp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
503 rwops->hidden.stdio.autoclose = autoclose;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
504 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
505 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506 }
3564
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
507 #else
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
508 SDL_RWops *
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
509 SDL_RWFromFP(void * fp, SDL_bool autoclose)
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
510 {
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
511 SDL_SetError("SDL not compiled with stdio support");
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
512 return NULL;
d264d99576c1 Add a dummy function if SDL doesn't have STDIO support
Sam Lantinga <slouken@libsdl.org>
parents: 3253
diff changeset
513 }
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
514 #endif /* HAVE_STDIO_H */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
516 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
517 SDL_RWFromMem(void *mem, int size)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
519 SDL_RWops *rwops;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
521 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
522 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
523 rwops->seek = mem_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
524 rwops->read = mem_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
525 rwops->write = mem_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
526 rwops->close = mem_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
527 rwops->hidden.mem.base = (Uint8 *) mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
528 rwops->hidden.mem.here = rwops->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
529 rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
530 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
531 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
534 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
535 SDL_RWFromConstMem(const void *mem, int size)
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
536 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
537 SDL_RWops *rwops;
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
538
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
539 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
540 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
541 rwops->seek = mem_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
542 rwops->read = mem_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
543 rwops->write = mem_writeconst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
544 rwops->close = mem_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
545 rwops->hidden.mem.base = (Uint8 *) mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
546 rwops->hidden.mem.here = rwops->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
547 rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
548 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
549 return (rwops);
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
550 }
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
551
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
552 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
553 SDL_AllocRW(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
555 SDL_RWops *area;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
557 area = (SDL_RWops *) SDL_malloc(sizeof *area);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
558 if (area == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
559 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
560 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
561 return (area);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
564 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
565 SDL_FreeRW(SDL_RWops * area)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
567 SDL_free(area);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
568 }
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
569
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
570 /* Functions for dynamically reading and writing endian-specific values */
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
571
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
572 Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
573 SDL_ReadLE16(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
574 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
575 Uint16 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
576
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
577 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
578 return (SDL_SwapLE16(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
579 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
580
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
581 Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
582 SDL_ReadBE16(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
583 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
584 Uint16 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
585
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
586 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
587 return (SDL_SwapBE16(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
588 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
589
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
590 Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
591 SDL_ReadLE32(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
592 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
593 Uint32 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
594
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
595 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
596 return (SDL_SwapLE32(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
597 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
598
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
599 Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
600 SDL_ReadBE32(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
601 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
602 Uint32 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
603
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
604 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
605 return (SDL_SwapBE32(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
606 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
607
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
608 Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
609 SDL_ReadLE64(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
610 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
611 Uint64 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
612
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
613 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
614 return (SDL_SwapLE64(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
615 }
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
616
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
617 Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
618 SDL_ReadBE64(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
619 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
620 Uint64 value;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
621
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
622 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
623 return (SDL_SwapBE64(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
624 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
625
3253
5d7ef5970073 Fixed issues building 64-bit Windows binary
Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
626 size_t
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
627 SDL_WriteLE16(SDL_RWops * dst, Uint16 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
628 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
629 value = SDL_SwapLE16(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
630 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
631 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
632
3253
5d7ef5970073 Fixed issues building 64-bit Windows binary
Sam Lantinga <slouken@libsdl.org>
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633 size_t
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634 SDL_WriteBE16(SDL_RWops * dst, Uint16 value)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
635 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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636 value = SDL_SwapBE16(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
637 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
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parents: 1338
diff changeset
638 }
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parents: 1769
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639
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640 size_t
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parents: 1769
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641 SDL_WriteLE32(SDL_RWops * dst, Uint32 value)
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Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
642 {
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parents: 1769
diff changeset
643 value = SDL_SwapLE32(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
644 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
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Sam Lantinga <slouken@libsdl.org>
parents: 1338
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645 }
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parents: 1769
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646
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parents: 2859
diff changeset
647 size_t
1895
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parents: 1769
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648 SDL_WriteBE32(SDL_RWops * dst, Uint32 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
649 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
650 value = SDL_SwapBE32(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
651 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
652 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
653
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parents: 2859
diff changeset
654 size_t
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Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
655 SDL_WriteLE64(SDL_RWops * dst, Uint64 value)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
656 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
657 value = SDL_SwapLE64(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
658 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
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Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
659 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
660
3253
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Sam Lantinga <slouken@libsdl.org>
parents: 2859
diff changeset
661 size_t
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
662 SDL_WriteBE64(SDL_RWops * dst, Uint64 value)
1354
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Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
663 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
664 value = SDL_SwapBE64(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
665 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
666 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
667
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
668 /* vi: set ts=4 sw=4 expandtab: */